高氯酸氮的生成热

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry Pub Date : 1962-11-01 DOI:10.6028/JRES.066A.045

A. A. Gilliland

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引用次数: 2

摘要

用量热法测定了高氯酸铵(NO2ClO4)溶液和硝酸钾与高氯酸钾混合物在氢氧化钾水溶液中的热。这些组合得到:NO2ClO4(c)+4KOH(in5300H2O)→KClO4(c)+KNO3(c)+2KOH(in5300H2O)+H2O(liq)ΔH=−285.80±0.38kj/mol =−68.31±0.09kcal/mol，由此计算出高氯酸氮的标准生成热为ΔHf°(25°c) NO2ClO4(c)=37.19±1.0kj/mol =8.89±0.25kcal/mol，其中不确定度代表结果的估计总体标准偏差的两倍。

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Heat of Formation of Nitronium Perchlorate

Calorimetric measurements of the heat of solution of nitronium perchlorate (NO2ClO4) and of a mixture of potassium nitrate and potassium perchlorate in aqueous potassium hydroxide have been made. These are combined to give: NO2ClO4(c)+4KOH(in5300H2O)→KClO4(c)+KNO3(c)+2KOH(in5300H2O)+H2O(liq)ΔH=−285.80±0.38kj/mole=−68.31±0.09kcal/molefrom which the standard heat of formation of nitronium perchlorate is calculated as ΔHf°(25°C)NO2ClO4(c)=37.19±1.0kj/mole=8.89±0.25kcal/mole,in which the uncertainty represents twice the estimated overall standard deviation of the result.

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Journal of research of the National Bureau of Standards. Section A, Physics and chemistry

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